>What is your OC's name?
Nocturnal Mirage
>How old is he?
23.
>What is his hobby?
He doesn't have too much hobbies. He certainly reads a lot, watches tons of movies, at night, or sometimes he just ventures off to the woods and enjoys the fresh air or stargazing.
>Does he have any relatives?
Yes. His mother is Summer Pride, an Elemental unicorn, the ancient Element of Fire.Unfortunately, her sanity is very unstable and she's very destructive, for she carries a grudge against Celestia.
Mirage also has a younger sister, called Moonlight Lullaby. Their relationship is quite ambivalent: When they are together, they become very close to each other, but sometimes they don't even see each other for long periods of time.
His father is unknown.
>What is his personality?
Well, he's quite reserved, he likes to keep himself to himself. But he's got good communication skills nevertheless and knows his way around the jokes too. He's sober-minded, vigilant and straight to the point. But he doesn't like/afraid to show his emotions and he manages to hide them effectively. His weakness is willpower. He doesn't have a lot of that, therefore he can be seduced by the promise of the easier way sometimes.
However, it came to his attention on the adventures he had in the recent past that he has hidden leadership skills or some sort.
>Does he know how to make friends easily?
Well yes and no. Yes, because he quickly connects with ponies and becomes the "heart" of the group, due to his sense of humor and the pleasing baritone speaking voice.
And no, because he doesn't bond easily. It takes a lot of time for him to learn to truly trust others but, once he embraced somepony to his heart, he's very insistent.
>Has he met any pony from the mane 6?
Yes, he met all of them in some way, for example he once saved Sweetie Belle when she accidentally teleported into the middle of a flooding river, so he's a welcomed guest at Rarity's. Same thing with Applejack, he used to live at their farmhouse for a few months when he first came to Ponyville. But his bonds are the strongest with Pinkie Pie, she was the one who introduced him to the magic of friendship and her friends.
>What was the most important thing he did in his life?
Once saving the Princesses by defeating his own mother.
>What is his achievements?
Well, he's the only magic-user earth pony in Ponyville, but that's not really an achievement, because he originates from a land called Terra Absolutia, a secluded part of Eastern-Equestria, surrounded by tall mountains and inhabited by magic using earth ponies. Plus he has recessive unicorn genes from his mother which enhances this natural ability of earth-manipulation.
>In one word, how do you explain him?
Ambivalent.
>Where does he live?
He lives at the outskirts of Ponyville, but works in Canterlot, as a Night time Guard at the Crystalline Embassy, so he travels by airship there everyday.
>What kind of music does he like?
He listens to classical music or metal covers of classical music most of the time, he has refined but ambivalent taste when it comes to music.
>What is his dream?
To be the first earth pony who gets accepted by Celestia as her student. (and he's got a chance for it since his unique abilities and his good relations with the Princess. :)
>Does he have a very special somepony? If so, who?
No, he's a single. He's very-very mistrustful when it comes to mares, due to some negative experiences in the past. He's still seeks true love, but it continues to be elusive. He wouldn't even admit to himself, but he has a huge crush on Celestia.
>If he had to join a club in High School, (Art, Drama, etc.) which one would it be?
Probably art.
>Is he a quiet kind of pony, or is he a talker?
As said previously, he's both. It depends on the situation. He doesn't like to engage, and rather stays quiet in the background, but once he's addressed he can be talkative.